GuindonBernierBeaudoinEtAl2014

Référence

Guindon, L., Bernier, P.Y., Beaudoin, A., Pouliot, D., Villemaire, P., Hall, R.J., Latifovic, R. and St-Amant, R. (2014) Annual mapping of large forest disturbances across Canada's forests using 250 m MODIS imagery from 2000 to 2011. Canadian Journal of Forest Research, 44(12):1545-1554. (URL )

Résumé

Disturbances such as fire and harvesting shape forest dynamics and must be accounted for when modelling forest properties. However, acquiring timely disturbance information for all of Canada's large forest area has always been challenging. Therefore, we developed an approach to detect annual forest change resulting from fire, harvesting, or flooding using Moderate Resolution Imaging Spectroradiometer (MODIS) imagery at 250 m spatial resolution across Canada and to estimate the withinpixel fractional change (FC). When this approach was applied to the period from 2000 to 2011, the accuracy of detection of burnt, harvested, or flooded areas against our validation dataset was 82%, 80%, and 85%, respectively. With FC, 77% of the area burnt and 82% of the area harvested within the validation dataset were correctly identified. The methodology was optimized to reduce the commission error but tended to omit smaller disturbances as a result. For example, the omitted area for harvest blocks greater than 80 ha was less than 14% but increased to between 38% and 50% for harvest blocks of 20 to 30 ha. Detection of burnt and harvested areas in some regions was hindered by persistent haze or cloud cover or by insect outbreaks. All resulting data layers are available as supplementary material.

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@ARTICLE { GuindonBernierBeaudoinEtAl2014,
    AUTHOR = { Guindon, L. and Bernier, P.Y. and Beaudoin, A. and Pouliot, D. and Villemaire, P. and Hall, R.J. and Latifovic, R. and St-Amant, R. },
    TITLE = { Annual mapping of large forest disturbances across Canada's forests using 250 m MODIS imagery from 2000 to 2011 },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2014 },
    VOLUME = { 44 },
    PAGES = { 1545-1554 },
    NUMBER = { 12 },
    NOTE = { cited By 0 },
    ABSTRACT = { Disturbances such as fire and harvesting shape forest dynamics and must be accounted for when modelling forest properties. However, acquiring timely disturbance information for all of Canada's large forest area has always been challenging. Therefore, we developed an approach to detect annual forest change resulting from fire, harvesting, or flooding using Moderate Resolution Imaging Spectroradiometer (MODIS) imagery at 250 m spatial resolution across Canada and to estimate the withinpixel fractional change (FC). When this approach was applied to the period from 2000 to 2011, the accuracy of detection of burnt, harvested, or flooded areas against our validation dataset was 82%, 80%, and 85%, respectively. With FC, 77% of the area burnt and 82% of the area harvested within the validation dataset were correctly identified. The methodology was optimized to reduce the commission error but tended to omit smaller disturbances as a result. For example, the omitted area for harvest blocks greater than 80 ha was less than 14% but increased to between 38% and 50% for harvest blocks of 20 to 30 ha. Detection of burnt and harvested areas in some regions was hindered by persistent haze or cloud cover or by insect outbreaks. All resulting data layers are available as supplementary material. },
    AUTHOR_KEYWORDS = { Boreal forest; Change detection; Decision tree; National burned area composite; Regression tree; Remote sensing },
    CODEN = { CJFRA },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1139/cjfr-2014-0229 },
    ISSN = { 00455067 },
    KEYWORDS = { Decision trees; Floods; Harvesting; Image reconstruction; Radiometers; Remote sensing; Satellite imagery, Boreal forests; Burned areas; Change detection; Forest disturbances; Forest properties; Moderate resolution imaging spectroradiometer; Regression trees; Spatial resolution, Forestry },
    SOURCE = { Scopus },
    URL = { http://www.nrcresearchpress.com/doi/abs/10.1139/cjfr-2014-0229#.VBG3L8KHh8E },
}

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